從PHP代碼調用Watson API

我想從我的PHP代碼使用curl調用Natural Language Understanding Watson API。我已經成功地嘗試從終端捲曲。它詳細介紹了執行此命令的一些結果：從PHP代碼調用Watson API

curl -u "my_username":"my_password" "https://gateway.watsonplatform.net/natural-language-understanding/api/v1/analyze?version=2017-02-27&text=I%20still%20have%20a%20dream.&features=sentiment,keywords"

然而，當我嘗試使用此代碼使用捲曲在PHP中：

<?php 
$url = "https://gateway.watsonplatform.net/natural-language-understanding/api/v1/analyze?version=2017-02-27&text=I%20still%20have%20a%20dream%2C%20a%20dream%20deeply%20rooted%20in%20the%20American%20dream%20%E2%80%93%20one%20day%20this%20nation%20will%20rise%20up%20and%20live%20up%20to%20its%20creed%2C%20%22We%20hold%20these%20truths%20to%20be%20self%20evident%3A%20that%20all%20men%20are%20created%20equal.&features=sentiment,keywords"; 
$post_args = array(
     'version' => '2017-02-27', 
     'url' => 'https://davidwalsh.name/curl-post', 
     'features' => 'sentiment,keywords' 
    ); 
$headers = array(
     'Content-Type:application/json' 
    ); 
$ch = curl_init(); 
curl_setopt($ch, CURLOPT_USERPWD, "my_username:my_password"); 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
//curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC); 
//curl_setopt($ch, CURLOPT_POST, true); 
curl_setopt($ch, CURLOPT_URL, $url); 
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); 
//curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($post_args)); 
$result = curl_exec($ch); 
    if ($result === FALSE) { 
     die('Send Error: ' . curl_error($ch)); 
    } 
curl_close($ch); 
echo $result; 
?>

我得到這樣的結果：

{ 
"error": "unsupported media type", 
"code": 415 
}

什麼都要做完了？

來源

2017-07-30 Ankit Shubham

爲什麼你評論'CURLOPT_POST'和'CURLOPT_HTTPAUTH'選項？此外，你永遠不會發送你的POST參數 – BeetleJuice

我試過了你確切的代碼，它在我的一端很好 –

問題可能與版本有關。你有沒有鏈接到API文檔？ –

我不敢相信我因爲空白而被卡在這裏。更換此：

$headers = array(
     'Content-Type:application/json' 
    );

與

$headers = array(
     'Content-Type: application/json' 
    );

工作。請注意0和application/json之間的空格。

來源

2017-07-31 04:43:09

從PHP代碼調用Watson API

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